An Initial Look At Spectre V4 "Speculative Store Bypass" With AMD On Linux
In Summary : Yesterday the latest Spectre vulnerability was disclosed as Spectre Variant 4 also known as "Speculative Store Bypass...
https://updatesinfosec.blogspot.com/2018/05/an-initial-look-at-spectre-v4.html
In Summary :
Yesterday the latest Spectre vulnerability was disclosed as Spectre Variant 4 also known as "Speculative Store Bypass" as well as the less talked about Spectre Variant 3A "Rogue System Register Read". Here are my initial tests of a patched Linux kernel on AMD hardware for Spectre V4. Landing yesterday into Linux 4.17 Git was Speculative Store Bypass Disable (SSBD) as the Linux-based mitigation on Intel/AMD x86 CPUs. Since then has also been the POWER CPU SSBD implementation and pending patches for ARM64 CPUs. [...]
kindly refer the following link as follow up :
https://www.phoronix.com/scan.php?page=article&item=spectre4-amd-initial&num=1
Yesterday the latest Spectre vulnerability was disclosed as Spectre Variant 4 also known as "Speculative Store Bypass" as well as the less talked about Spectre Variant 3A "Rogue System Register Read". Here are my initial tests of a patched Linux kernel on AMD hardware for Spectre V4. Landing yesterday into Linux 4.17 Git was Speculative Store Bypass Disable (SSBD) as the Linux-based mitigation on Intel/AMD x86 CPUs. Since then has also been the POWER CPU SSBD implementation and pending patches for ARM64 CPUs. [...]
kindly refer the following link as follow up :
https://www.phoronix.com/scan.php?page=article&item=spectre4-amd-initial&num=1
